AT&T’s not the only operator to grant early adopters the opportunity to pre-order the Samsung Galaxy S 4 on April 16th — US Cellular will be following suit as well. While the regional carrier hasn’t announced pricing or any other details on availability yet, interested customers will be able to at least start the purchase process before it hits retail shelves. Head to the source to sign up for email alerts on pricing and availability, and we’ll keep you posted as soon as we hear updates.